Android，点击对话框中的“确定”后重新加载或刷新当前片段

Question

这是我的对话里面的片断，它工作良好，现在我想当我点击“确定”按钮，它重新载入当前的片断。调用showDialog方法时显示对话框：mi fragment is android.support.v4.app.fragment

void showDialog() {
    LayoutInflater layoutInflater = LayoutInflater.from(getContext());
    View promptView = layoutInflater.inflate(R.layout.dialog_fragment_agenda, null);
    TextView txtNombre = (TextView)promptView.findViewById(R.id.txtdialog1);
    txtNombre.setText("ADD THIS STUFF?");
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getContext());
    alertDialogBuilder.setView(promptView);

    alertDialogBuilder.setPositiveButton("Ok",new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            sendSomeStuff();
            //HERE TODO RELOAD OR REFRESH THE FRAGMENT


        }
    });
    alertDialogBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {

        } });
    AlertDialog alert = alertDialogBuilder.create();
    alert.show();
}

更新这是片段。我想回顾片段的onCreateView方法

public class FragmentOne extends Fragment {
//...some variables
   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    rootView = inflater.inflate(R.layout.fragment_one, container, false);
    showDialog()//HERE I CALL MY CUSTOM DIALOG

    return rootView;
}
}

使用viewpager和FragmentPagerAdapter测试

FragmentTransaction ft = getFragmentManager().beginTransaction();

ft.detach(FragmentOne.this).attach(FragmentOne.this).commit();

Answer 1

当片段对用户可见时刷新片段

    override fun setUserVisibleHint(isVisibleToUser: Boolean) {
    super.setUserVisibleHint(isVisibleToUser)
    if(isVisibleToUser){
        if (getFragmentManager() != null) {
            getFragmentManager()
                ?.beginTransaction()
                ?.detach(this)
                ?.attach(this)
                ?.commit();
        }
    }
}